Car truck



May 31, 1927. B w. KABEL ET AL 1,630,574

CAR TRUCK Filed June 9, 1926 3 Sheets-Sheet l @9i/clp. 9 E

May 31, 1927. 1,630,574

B. W. KADEL ET AL CAR TRUCK Filed June 9 1926 3 Sheets-Sheet 2 May 311927' B. w. KABEL ET AL 1630574 CAR TRUCK Filed June 9. 1926 3Sheets-Sheet 3 Patented May 3l, 1927.

UNITED STATES PATENT OFFICE.

BYERS W, KADEL, OF BALTIMORE, MARYLAND, AND DONALD S. BABBOWS, Ol'

- ROCHESTER, NEW YORK.

GA3 TRUCK.

Application tiled June 9, 1926. Serial No. 114,740.

This invention relates to trucks and, more particularly, to railway cartrucks in which the capacity of the bolster springs is reinforced byauxiliary springs positioned 5 at higher elevations along thelongitudinal center line of the corresponding side frame.

The principal object of our invention, gen erally considered, is theprovision of addi tional springs for augmenting-the capacity lo of thenest of springs supporting the truc bolster, said auxiliaryv springs,however, being positioned at higher elevations and alternativelyengaging upwardly offset portions of the bolster whereby they are notbrought into play until after a predetermined compression of said nestof springs.

An object of our invention is the provision of a nest of springs forsupporting each end of the truck bolster, said springs being reinforcedb a pair of springs positioned one on eit er side of the nest of springsalong the longitudinal center line of the side frame, said additionalsprings being disposed at a higherl elevation than the nest of springsfor allowing the tension member of the side frame to slope upwardlythereunder, the bolster supported by said nest of springs being formedwith auxiliary spring engaging portions positioned at such $0 a heightwith respect to thc auxiliary springs that said auxiliary springs do notcome into play until after la predetermined compression of the nest ofsprings.

A'further object ot our invention is the 86 provision of auxiliarysprings for supplementing the action of the nest of springs supportingthe truck bolster of railway car trucks, said additional springs beingdisposed at higher elevations than the original 4o springs whereby thetension members of the side frames can slope upwardly thereunder andpreferably of such a height that they are not brought into play untilthe original springs are normally loaded.

A still further object of our invention is the supporting of the bolsterof a railwayk car truck by means of nests of springs supplemented by aspring positioned on each side of said nests along the longitudinalcenter lines of the side frames, said auxiliary springs being disposedon spring supporting portions of the frame at higher elevations than theother springs and preferably formed stiffer than said other springs andof such length that they are adapted to go solid simultaneously withsaid other s rings, the bolster being so constructed that it does notengage the auxiliary springs `until after a predetermined compression ofthe other springs and preferably at the time said other springs arenormally loaded.

Other objects and advantages of the invention relating to the particulararrangement and combination of the various parts wil become apparent asthe description procee s.

Referring to the drawings illustrating our invention, the scope whereofis defined by the appended claims:

Figure l is a fragmentary side elevation of a railway car truckparticularly showing the bolster springs and the adjacent portions ofthe side frame, bolster and spring plank.

Figure 2 is a horizontal sectional view on the line 2-2 of Figure 1looking in the direction of the arrows.

Figure 3is a vertical sectional view on the line 3--3 of Figure 1looking in the direc# tion of the arrows.

Figure 4 is a plan of the spring plank and spring supporting portion ofthe side frame, certain portions of the frame being shown in section andthe position of the bolster springs being indicated diagrammatically bydot and dash lines.

Figure 5 is a plan view corresponding to the left-hand side of Figure 2but showing a modification.

Figure 6 is a fragmentary side elevation corresponding to Figure 1 butshowing a further modification.

Figure 7 is a horizontal sectional view on the line 7-7 of Figure 6looking in the direction of the arrows.

Referring now to the drawings in detail, like parts being designated bylike reference characters and first, considering the embodiment ormodification illustrated in Figures 1 to 4, inclusive, a side frame 1,which may correspond to frames generally employed 10u with ii-fty tontrucks, is formed with a compression member 2, a tension member 3 andbolster guide columns or struts 4 spacing intermediate portions of saidcompression and tension members and leaving a window 105 or bolsteropening 5 therebetween. The compression member 2 may be generally Ushape in cross section and the strut portions -4, particularly at thebolster guiding portions thereof, may be of similar construction. Thetension member 3, particularly between the strut portions 4 beneath thewindow opening 5, is formed generally box shape in cross section asshown most clearly in Figure 3, the upper web 6 of said box sectionbeing extended beyond the side webs 7 and S thereof to form a springplank seat port-ion 9 ot ample width.

Preferably supported directly on the spring plank seat portion 9 of thetension member 3 is a spring plank 1() which may he channel shape inCross section. as indicated. Positioned on opposite sides ot the springplank seat portion 9 ot' the tension member 3 along the longitudinalcenter line ot' the side trame are auxiliary spring support ingembossments or stools 11, the upper surfaces of said embossments beingdisposed at a higher elevation than the surface ot' the spring plankseat portion 9 whereby the tension member 3 may be sloped upwardly andoutwardly therebeneath without decreasing the same in depth. In order toeconomize space between the strut portions 1, the auxiliary springsupportingr emboss ments 11 encroach on the normal lines of the springplank 10 so thatl said spring plank is inset at 12 around the engagingportions ot' said auxiliary spring seats, as indicated most. clearly inFigure 2, said engagement also serving to lock the spring plank in thedesired assembled relation with respect to the side frame.

Positioned on the spring plank 10 is a spring plate 13 preferablyprovided, in the present emliodiment. with tour spring locating collars14, said collars being normally positioned with respect to each othertor receiving a standard t'our unit nest ot' springs, `ach unit l5preferably comprising an outer coil 16 and an inner coil 17, the innercoil 1T preferably snugly titting around its corresponding collar 14 andthe outer coil 16 preferably wound in the opposite manner and properlypositioned by the inner coil 1T, a normal amount of clearance beingprovided therebetween. For )roperly position ing the spring plate 13with respect to the spring plank 10. said plate may he provided withlocating bosses 13 adapted for engagement in normally positionedapertures 19 in the spring plank ltl. The upper spring plate 2t) may helikewise formed with positioning bosses 2l adapted for cngagement innormally positioned apertures in the bolster 23. The spring plates 13and 2t) may be inwardly embossed toward each other as indicated :1t-24and receiving a retaining bolt 25 extending through perforations 26 and27. respectively. of the upper and lower spring plates.

For increasing the spring capacity ot the nest of springs. in thepresent embodiment,

we provide additional springs 23 positionedv on either side of the nestof springs 15 and of springs 15.

preferably disposed with respect to said nest of springs on thelongitudinal center line of the side frame 1. The springs 28 arepreferably provided with lower spring plates 29 properly positioned withrespect to the auxiliary spring supports l1 in any desired manner as bymeans of upstanding bosses 30 extending into perforations 31therethrough. The spring plates 29 are preferably formed with springpositioning collars 32 around which the springs 28 engage. Upper springplates 33 may be provided of a construction corresponding with the lowerspring plates 29 and engaglng downwardly extending bosses 34 on theupwardly ottset portions'35 of the bolster 23 for properly lbcating saldspring plates with respect thereto.

The distance between the offset portions 35 of the bolster and theauxiliary spring supporting portions 11 of the traine may correspondwith the distance between the spring plank portion of the frame and themain spring supporting portion ot the bolster but, in thepresentinstance, it is slightly greater so that the free heights ot theaux iliary springs may correspond substantially with the `free heightsof the spring units of the nest ot springs so that, when said nest ofsprings is initially engaged by the bolster, a space is provided betweenthe tops of the auxiliary springs or the top spring plates thereof andthe corresponding portions ofthe bolster whereby it is necessary tocompress the main nest of springs a predetermined amount before theauxiliary springs come into action. The auxiliary spring locating bosses34 are on this account sufticiently long to prevent displacement of theauxiliary springs even when there is a space, as shown in Figure 1,between the upper spring plates therefor and the upwardly ottsetportions 35 of the holster as occurs when said bolster' is just engagingthe main nest In this way, it will be apparent that the capacity ot saidauxiliary springs is reserved until at'ter a predetermined compressionot' the main nest ot springs which compression may and preterably doescorrespond with the normal load' ing ot' the main nest ot' springs.inasmuch as the tot-al compressive movement with respect to the.auxiliary springs is less than that for the main nest of springs. saidauxiliary springs are prel'erabl 'v formed of heavier material so thatthey develop a corresponding supporting force. during a shorter travelor during the travel to compress said springs solid. As. after theengagement ot' the auxiliary springs. all ot the springs are compressedas a unit, it is desii-able to so wind said auxiliary springs that theygo solid simultaneously with thc main springs or nest thereof.

The bolster guiding portions 36 oi' the side frame l may, in the presentinstance, be formed with inwardly extending guiding flanges 37 embracingthe guiding lugs 38 on the bolster for properly retaining the saine inplace, it being obvious that said bolster may be inserted in place inthe usual manner. Although the auxiliary springs 28 are in the presentinstance formed of heavier material, are single coils, and are adaptedto go solid simultaneously with the main nest of springs, yet it isobvious that we do not wish to be restricted to this showing as saidsprings may be of any desired capacity and adapted for being broughtinto play or engaged by the bolster at any desired period in thecompression of the main nest of springs.

The lower spring plates 29 are obviously prevented from longitudinalmovement by the bosses 30 and may be prevented from turning movement, ifsuch is desired, by depending flange portions 39 extending along thesides of the spring supporting por tion 11. A similar comment applies tothe upper spring plates 33 except that turning thereof is prevented bythe engagement of the squared side 40 with the corresponding surface ofthe bolster guiding portion 36.

Referring now to the modification of our invention illustrated in Figure5, a similar arrangement is shown except that the nest of springs 15a isa five unit rather than a four unit nest of springs arranged insubstantially square formation, the ydimension thereof. longitudinallyof the side frame, being determined by the normal spring plank width andthe inset portions 12a thereof and the dimension thereof transverse withrespect to the side frame 1a is determined by the clearance necessaryfor the center spring unit. Except that the arrangement here shown isparticularly adapted for frames normally employed with seventy tontrucks, although we do not wish to be restricted to such use, the otherdetails of construction may correspond substantially with those of theembodiment of our invention illustrated in Figures l to 4, inclusive. Itis obvious, however, that the strength of the auxiliary springs 28 maybe correspondingly increased to provide a proportional increase/instrength on account of their use.

Referring now to the embodiment of our invention illustrated in Figures6 and 7, a modification is disclosed which differs from the previousmodifications in that the bolster 23 is of the ordinary type notprovided with upwardly offset portions for receiving the auxiliarysprings 28". Said auxiliary springs are` however, supported on slightlyraised auxiliary spring supporting portions llh and the tension member3b of the side frame lb is sloped upwardly and outwardly thereunder in amanner similar to the preious modifications except that it is to a lessdegree. The arrangement shown in these figures is particularly adaptedfor a truck of lighter capacity, say in the forty ton class, and theauxiliary springs 28 being there,- fore lighter than the springs 28 maybe of a smaller diameter so that the bolster opening is less than thatshown in the first modification.

As in the first modification, a four unit nest of springs 15" is shownas the main bolster supporting means and the spring plank 10b may beconstructed of similar configuration and provided with inset portions12b cooperating with the auxiliary spring supporting portions llb as inthe previous modifications. Said springsupporting por-h tions llb arepreferably provided with upstanding spring locating bosses 3()b and,although no spring plates are shown with said springs, it is obviousthat, if desired, such may be used as in the previous embodiments. Thebolster, in the present instance` is shown provided with dependingspring locating bosses 34h sufficiently long to engage the auxiliarysprings at all times, it being understood that. as in the previousembodiment, said auxiliary springs are of such a length that they arenot engaged by the bolster until the main nest of springs 15b has beenstressed a predetermined amount` such amount being preferably thateffected b 1 a normal loading thereof Except as specifically describedin connection with the present embodiment, the other details thereof maybe substantially asdisclosed in connection with the previous embodimentscxcept that, as will be obvious, the bolster 23" is provided with theusual type of outside guiding lugs 38 between which the bolster guidingportions 36" extend.

By virtue of the foregoing embodiments of our invention, it will beapparent that we have devised a type of car truck in which the capacityof the springs supporting the bolster is increased, said bolster beingalternatively of a type in which the additional springs engage upwardlyoffset portions thereof and the frame being provided with raisedauxiliary spring supporting portions whereby the diagoriail end portionsof the tension member of the side frame may start to slope upwardly andoutwardly beneath said auxiliary springs thereby improving the design offrame and minimizing the genera-l angularity of the end portions of thediagonal tension member. Said auxiliary springs are so constructed thatthey are not engaged by t-he bolster for compressing the same until themain or normal nest of springs has been compressed a predeterminedamount,A

preferably an amount corresponding with the normal load thereon.Although lthe three embodiments illustrated are particularly,respectively, for seventy, fifty and forty ton trucks, yet theprinciples of the disclolll) sures Vmay be embodied in trucks andelements thereof of any desired capacity or character. The main nests ofsprings shown are preferably, though not necessarily, those normallyused with trucks of the rated capacity, the auxiliary springs usedtherefor increasing said capacity to the desired amount.

Having now described our invention, we claim:

1. In a truck, in combination, a side frame formed with a bolsteropening, a main spring supporting portion underlying said opening, anauxiliary spring supporting portion at a higher elevation adjacent saidfirst mentioned spring supporting portion, a

plurality of springs supported by said main spring supporting portionand a bolster supported by said springs, spring means disposed on theauxiliary spring supporting portion of the frame and extending towardsaid bolster, said spring means being of such a height that it is notstressed until after a predetermined compression of the other springs.

2. In` a car truck, in combination, a side frame formed with a bolsteropening and a spring supporting portion underlying said opening, saidportion bein arranged with a main part disposed at re atively lowelevation and auxiliary parts disposed at relatively high elevations, anest of springs supported on said main part and additional springssupported on said auxiliary parts, a bolster supported on said nest ofsprings and the arrangement being such that the auxiliary springs arenot compressed thereby until the main springs have been compressed apredetermined amount.

3. In a car truck, in combination, a side frame formed with a bolsteropening and a spring plank seat portion beneath. said opening, a nest ofsprings supported by said spring plank seat portion and a bolstersupported by said nest of springs, auxiliary spring seating portions onopposite sides of said spring plank seat portion of the frame anddisposed at different elevations with respect thereto, springspositioned on saidk auxiliary portions and extending toward the bolsterand being of such a height that they are not engaged thereby until aftera predetermined compression of the other springs.

4. In a car truck, in combination, a side frame formed with a bolsteropening and a spring plank seat portion underlying said opening, a nestof springs supported by said spring plank seat portion, and a pluralityof extra springs arranged on opposite sides of said nest o? springs,said extra springs being of substantially the same height as the othersprings but formed for engagement with upwardly offset-portions of thebolster whereby they are not compressed until after a predetermineddeflection of the main springs.

5. In a car truck, in combination, a side frame formed 'with a bolsteropening and a spring supporting portion underlying said opening, astandard nest of 'springs supported by said spring supporting portion, abolster supported by said nest of springs and a pair of auxillarysprings positioned one on either side of the nest of springs anddisposed at a higher elevation than said nest of springs, said bolsterbeing formed with upwardly offset portions adapted for engagement withthe auxiliary springs after a predetermined compression of the nest ofsprings.

6. In a car truck, in combination, a side frame formed with a bolsteropening and a spring supporting portion beneath said opening. a nest ofsprings supported by said portion and a bolster supported by said nestof springs, said spring capacity being reinforced by a pair of springspositioned on the longitudinal axis of the side frame, one spring oneither side of the nest of springs, said springs being supported onseating portions of the frame at higher elevations than the springsupportin portion thereof, said bolster being formed with inset portionsadapted for engagement with said springs subsequent to the bolsterengagement with the nest of springs, said auxiliary springs being soWound that they are adapted to go solid simultaneously with the nest ofsprings.

7. In a car truck. in combination, a side frame comprising a compressionmember, a tension member and bolster guide columns spacing intermediateportions of said menibers leaving a window opening therebetween, thatportion of the tension member, beneath the window opening, being formedwith a spring plank seat portion and auxil iary spring supportingportions, a spring plank supported on said spring plank seat portion, aspring plate supported on said spring plank and formed with means forositioning the same with respect to said spring plank and means forproperly locating associated springs with respect thereto, a nest ofsprings supported on said spring plate and a second spring platesupported on said nest of springs and in turn initially supporting abolster thereabove, the capacity of said nest of springs beingreinforced by additional springs positioned on the anxil iary springsupporting portions of the frame. said additional springs beingsupported on correspondingly formed spring plates and in turn supportingspring plates thereabove, the corresponding portions of the bolsterbeing upwardly offset for receiving the auxiliary springs and associatedupper spring plates and provided with means lll] for properly locatingthe same with respect thereto, the free height of said springs beingless than the normal free height space provided therefor between said boster and frame whereby the capacity of said auxiliary springs isreserved until after a predetermined compression of said nest ofsprings.

8. In a car truck, in combination, a side frame formed with a bolsteropening and a spring supporting portion beneath said opening, a nest ofsprings supported by said spring supporting portion, and a bolstersupported by said nest of springs, that portion of the frame on oppositesides of the spring supporting portion thereof being formed withauxiliary spring seating por` tions at a higher elevation, auxiliarysprings positioned on said auxiliary portions, sald bolster beingprovided with portions adapted for engagement with said auxiliarysprings approximately just when the nest of springs has been normallyloaded.

9. In a car truck, in combination, a side frame formed with abolster'opening and a spring plank seat portion underlying said opening,anest of springs supported by said spring ,plank seat portions and aplurality of extra springs arranged on opposite sides of said nest ofsprings and located at a higher elevation than said nest of springs,said extra springs being of such a length in comparison with the nest ofsprings and the respective distances between bolster and side framealong the spring axes that they are not brought into play until the nestof springs is normally loaded.

10. In a car truck, in combination, a side frame formed with a bolsteropening and a spring seating portion beneath said opening, a pluralityof springs su ported by said springseating portion and a olstersupported by said springs, auxiliary spring seating portlons on oppositesides of said first mentioned spring seating portion of the frame anddisposed at different elevations with respect thereto, springspositioned on said auxiliary sprin supporting portions and extendingtowar the bolster and being of such a height that the capacity thereofis .reserved until after a predetermined compression of the othersprings, said auxiliary springs, however, being constructed of heaviermaterial whereby a correspondin force is developed therein whencompresse to a lesser degree.

1l. In a car truck, in combination, a side frame comprising acompression member, a tension member and bolster guide columns spacingintermediate rtons of said members leaving a win ow openingtherebetween, that portion of the tension member, beneath the windowopening, being formed with a spring plank seat portion and auxiliaryspring sgpporting portions, a spring plank support on said spring plankseat portion, a spring plate supported on said spring plank and formedwith means for positiomng the same with respect to said spring plank andmeans for properly loeating associated springs with respect thereto, anest of springs supported on said spring plate and a second spring platesupported on said nest of springs and in turn initially supporting abolster thereabove, the capacity of said nest of springs beingreinforced by additional springs positioned on the auxiliary springsupporting portions of the frame, the correspondin portions of thebolster being upwardly o set for receiving the auxiliary s rings andprovided with "means for proper y locating the same with respectthereto, the free height of said springs being less than the normal freeheight space provided therefor between said bolster and frame wherebythe capacity of said auxiliary s rings is reserved until after apredetermined compression of said nest of springs.

12. In a car truck, in combination, a side frame formed with a bolsteropening and a spring plank seat portion beneath said opening, a nest ofsprings supported by said spring plank seat portion and a bolstersupported by said nest of springs, an auxiliary spring seating portionadjacent said sprin plank seat portion of the frame and disposed at adifferent elevation with respect thereto, resilient means positioned onsaid auxiliary portion and extending toward the bolster and being ofsuch a-height that it is not engaged thereby until after a predeterminedcompression of the other springs.

13. In a car truck, in combination, a side frame formed with a bolsteropenin and a spring supporting portion beneat said opening, a nest ofsprings supported by said spring su porting portion, and a bolstersupported y said nest of springs, that portion of the frame adjacent thespring supporting portion thereof being formed with an auxiliary springseating portion at a different elevation, auxiliary resilient meansositioned on said auxiliary portion, said lster being provided with aportion adapted for engagement with said auxiliary means approximatelyjust when the nest of springs has been normally loaded.

In testimony whereof we affix our signatures.

BYERS W. KADEL. DONALD S. BARROWS.

